As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - INFO TO MX- LT PACK OUT TEMP IS 275 DEGREES W/ TEMP CONTROL VALVE FULL COLD AND RAM IN DOOR FULL OPEN. DUCT TEMPS NORMAL AND NO OTHER INDICATIONS DISPLAYED. T/S IAW FIM 21-51-00. FOUND BAD TEMP BULB. R & R LT PACK OUTLET TEMP BULB IAW AMM 21-52-06. ALL OPS CK NORMAL.